21980085

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47269}}^1$

素因数の和:47308

約数の個数: 16

約数和(自身を含む): 36303360

約数和(自身を除く): 14323275

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 47269, 141807, 236345, 709035, 1465339, 4396017, 7326695, 21980085]

約数ペア:

[(1, 21980085), (3, 7326695), (5, 4396017), (15, 1465339), (31, 709035), (93, 236345), (155, 141807), (465, 47269)]